Configuration.java 文件源码

@Override
public void readFields(DataInput in) throws IOException {
  clear();
  int size = WritableUtils.readVInt(in);
  for(int i=0; i < size; ++i) {
    set(org.apache.hadoop.io.Text.readString(in),
          org.apache.hadoop.io.Text.readString(in));
  }
}